Riskcovery

CVE-2022-48748

net: bridge: vlan: fix memory leak in __allowed_ingress

State
Published
Severity
7.5 High
Published
Jun 20, 2024
Updated
May 11, 2026
Reserved
Jun 20, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: vlan: fix memory leak in __allowed_ingress

When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

  • CWE-400 Uncontrolled Resource Consumption

Affected Products

ProductVersions
LinuxLinux
  • a580c76d534c7360ba68042b19cb255e8420e987 to before 446ff1fc37c74093e81db40811a07b5a19f1d797Affected
  • a580c76d534c7360ba68042b19cb255e8420e987 to before c5e216e880fa6f2cd9d4a6541269377657163098Affected
  • a580c76d534c7360ba68042b19cb255e8420e987 to before 14be8d448fca6fe7b2a413831eedd55aef6c6511Affected
  • a580c76d534c7360ba68042b19cb255e8420e987 to before fd20d9738395cf8e27d0a17eba34169699fccdffAffected
LinuxLinux
  • 5.6Affected
  • before 5.6Not affected
  • 5.10.96 through 5.10.*Not affected
  • 5.15.19 through 5.15.*Not affected
  • 5.16.5 through 5.16.*Not affected
  • 5.17 and laterNot affected

References

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